From dd0721ea4c7a6c2ec8b309ff57d74d88f08d4c23 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Fri, 11 Jun 2021 23:05:25 +0300 Subject: net: pcs: xpcs: add support for NXP SJA1105 The NXP SJA1105 DSA switch integrates a Synopsys SGMII XPCS on port 4. The generic code works fine, except there is an integration issue which needs to be dealt with: in this switch, the XPCS is integrated with a PMA that has the TX lane polarity inverted by default (PLUS is MINUS, MINUS is PLUS). To obtain normal non-inverted behavior, the TX lane polarity must be inverted in the PCS, via the DIGITAL_CONTROL_2 register. We introduce a pma_config() method in xpcs_compat which is called by the phylink_pcs_config() implementation. Also, the NXP SJA1105 returns all zeroes in the PHY ID registers 2 and 3. We need to hack up an ad-hoc PHY ID (OUI is zero, device ID is 1) in order for the XPCS driver to recognize it. This PHY ID is added to the public include/linux/pcs/pcs-xpcs.h for that reason (for the sja1105 driver to be able to use it in a later patch). Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- drivers/net/pcs/Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net/pcs/Makefile') diff --git a/drivers/net/pcs/Makefile b/drivers/net/pcs/Makefile index c23146755972..0603d469bd57 100644 --- a/drivers/net/pcs/Makefile +++ b/drivers/net/pcs/Makefile @@ -1,5 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 # Makefile for Linux PCS drivers -obj-$(CONFIG_PCS_XPCS) += pcs-xpcs.o +pcs_xpcs-$(CONFIG_PCS_XPCS) := pcs-xpcs.o pcs-xpcs-nxp.o + +obj-$(CONFIG_PCS_XPCS) += pcs_xpcs.o obj-$(CONFIG_PCS_LYNX) += pcs-lynx.o -- cgit v1.2.3